Page 172 - CW E-Magazine (25-2-2025)

Special Report
LARGEST MANUFACTURERS FOR

Boosting energy effi ciency Here, in the title reaction, a plug-fl ow friendly solvent, followed by biochar
and selectivity of glucose (G) tubular reactor (PFTR) is suffi cient as a production. A very wide range of
oxidation to glucuronic acid model for process intensifi cation. (Chemie. solvents were considered and in the
(GA) Ing-Tech., 2024; DOI: 10.1002/ fi rst step an aqueous solution of gamma-
cite.202400111). valerolactone (GVL) was used. The
Z. Xie et al have adopted high-frequency second extraction was done with an 2,6- Dichloro Benzoic Acid
ultra-sound (u/s) using multi-cavity Solid-liquid separation of aqueous solution of ellagic acid and
CuO catalytic cavitation agents to reali- lignocellulosic sugars from its derivates. Remaining material was CAS Number :50-30-6
sing the conversion of G to GA. Two biomass by rotating ceramic used for biochar. (Green Chem., 2024;
pathways for G oxidation have been disc fi ltration DOI: 10.1039/D4GC03707C).
identifi ed. This strategy allows selective
oxidation. (Green Chem., 2024; DOI: P.O. Saboe et al have referred to the Pomegranate (P)
10.1039/D4GC037754). conventional tangential crossblow and peel phytochemistry, 2,6- Dichloro Benzoyl Chloride
vacuum fi ltration, which are challenged pharmacological properties,
Valorisation of sugarcane by the presence of biomass solids, methods of extraction, and its
hemicellulose hydrolysate which rapidly foul fi lters, resulting in applications CAS number : 4659-45-4
(HCH) to green chemicals decreased throughput. These authors
over BEA Zeolites have come out with a dynamic fi ltration J. Singh et al have given a compre-
hensive review of the title subject. In
E. M. Albuquerque et al have used BEA 2018, India was the largest producer
zeolites containing Si/Al equal to 12 and of P with a surface area of 234,000 ha Para Hydroxy Acetophenone
19. These authors have used a model and production was 2.84-million tonnes
hydrolysate consisting of typical concen- and this gave 1.9-million tonnes of
tration of xylose, arabinose, furfural and peel, which is a great source of poly- [4-Hydroxy Acetophenone/ 4-HAP]
acetic acid. Brazilian sugarcane bagasse phenols, dietary fibre, and vitamins,
is the background. This zeolite allows as well as other bioactive components. CAS Number : 99-93-4
conversion to platform molecules and Thus the utilisation of peel can be very
acetic acid participated in the reaction module, specifi cally a rotating ceramic rewarding. Green extraction methods,
as a homogeneous Bronsted co-catalyst; disc (RCD) fi lter for the aseptic reco- including pressurised liquid extraction,
zeolite plays a decisive role. Acetic acid very of cellulosic sugars from biomass ultrasound-assisted extraction, etc. are
did not damage the catalyst. Pentoses solids following pre-treatment and en- covered. (ACS Omega, 2023; DOI: Ortho Hydroxy Acetophenone
with different molecular confi guration zymatic hydrolysis. CFD was used to 10.1021/acsomega.3C0258G).
produced different products due to visualise hydrodynamic profi les. RCD
hydroxyls steric position. (Catalysis could achieve over 95% recovery of Glycerol and polyglycerol [2-Hydroxy Acetophenone /2-HAP]
Commun., 2024, 187, Feb., 106904; sugars with 12 wt% insoluble solids, maleates as raw materials for
DOI:10.1016/j.catcom.2024.106904).
that too with low energy consumption. partially bio-based concrete CAS Number : 118-93-4
Modelling of industrial (Green Chem., 2024; DOI: 10.1039/ admixtures
hydrochlorination of glycerol D4GC04533E).
[In the recent past, commercialisation of Valorisation of Pomegranate D. F. Martinez-Martinez et al have
glycerol based epichlorohydrin (ECH), Waste (PW) through green reported the self-catalysed kinetics to
required for epoxy resins, has happened, produce glycerol, diglycerol, and poly- 2 Methoxy Benzoic Acid
including in India.] solvent extraction and biochar glycerol-4 maleate esters, with temp.
production varying from 60 C to 80 C. The above
o
o
P.A . Baum et al have carried out modell- products can partially replace petroleum CAS Number :579-75-9
ing and optimisation of real chemical L.M. deSouza-Mesquita et al have derived polycarboxylate ethers which
reactors. This programme they have reported a sustainable, zero-waste are commonly used as concrete plasti-
tested on the title reaction is in a bubble biorefi nery for the title process. There cisers. The model accurately predicted
column. This model-based approach is the sequential extraction of antho- the behaviour of the reactions. (Chem. Contact Manufacturers:
gave insights into the reactors concentra- cyanins, ellagic acid and its derivatives Eng.Res.Des., 2023, 198, Oct., 46-55; val rganics Kohinoor Square, 4401, B Wing, N.C Kelkar Marg, Opp. Shivsena Bhavan, Dadar (W), Mumbai - 400028. India.
tion profi les, mass transfer, and mixing. through the use of environmentally DOI:10.1016/j.Cherd.2023.08.036). Tel.: +91 22 35016300-310 w Mob.: 9987425522
Pvt. Ltd.
Email: akshay.chadha@valorganics.com w Web.: www.valorganics.com
172 Chemical Weekly February 25, 2025

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